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Tiny 600 MHz Teensy Board for High-Speed Embedded, Audio, and Display Projects
The Teensy 4.0 gives you very high performance in a compact board that still fits breadboards and small enclosures. It is a strong choice for advanced control, audio DSP, fast LED work, displays, communications, and demanding embedded code.
Its 600 MHz ARM Cortex-M7 makes it one of the fastest boards in the Teensy family, while the small footprint keeps it practical for compact products and prototype builds.
Important: Teensy 4.0 is powerful, but it is a 3.3V-only board. Its digital pins are not 5V tolerant.
Why you'll love it
- Very high processing speed: Excellent for DSP, graphics, and demanding control logic
- Compact size: Keeps high performance in a small footprint
- Strong USB and peripheral set: Good for communications, MIDI, and fast data movement
- Large memory for its size: Useful for bigger code and buffers
- Excellent upgrade path: Ideal when Teensy 3.x is no longer enough
Comparison table
| Product | Best for | Core / Speed | Main edge |
|---|---|---|---|
| Teensy 3.2 | Balanced embedded, MIDI, display, sensor builds | 32-bit Cortex-M4 / 72 MHz | Well-balanced speed, 5V-tolerant digital inputs |
| Teensy 3.6 without headers | Bigger legacy builds, audio, USB host | 32-bit Cortex-M4 / 180 MHz | Legacy high-end 3.x board with USB host |
| Teensy 4.0 | Fast DSP, displays, robotics, compact high-speed work | 32-bit Cortex-M7 / 600 MHz | Very high speed in a tiny footprint |
| Teensy 4.1 Development Board | Large systems, Ethernet, SD, memory expansion | 32-bit Cortex-M7 / 600 MHz | Most I/O, SD, Ethernet, memory expansion |
What you can build
Use it for synth engines, audio effects, LED control, robotics, machine vision helper tasks, high-speed sensor fusion, custom USB gear, and compact embedded systems that need serious speed.
Starter bundles
Common pairings include the Teensy 4 Audio Shield (Rev D), displays, sensors, SD storage, and USB accessories depending on your project.
Recommended add-ons
Recommended add-ons include the Teensy 4 Audio Shield, USB host accessories, fast displays, SD storage, and interface boards for motors or communications.
Technical specifications
| Product | Teensy 4.0 |
|---|---|
| Main MCU | ARM Cortex-M7 |
| Clock Speed | 600 MHz |
| Memory | 1984 KB Flash, 1024 KB RAM, 1 KB EEPROM emulated |
| USB | USB device 480 Mbit/sec and USB host support |
| I/O Pins | 40 digital I/O, 31 PWM |
| Analog | 14 analog inputs |
| Communication | 7 Serial, 3 SPI, 3 I2C, 3 CAN |
| Audio | 2 I2S/TDM and 1 S/PDIF digital audio port |
| Logic Notes | Accepts 0 to 3.3V signals only; not 5V tolerant |
Pinout & power notes
This board stays compact, but it is strictly a 3.3V logic platform. Use level shifting where needed. It is best when you want top-end Teensy speed without moving to the longer 4.1 board.
Official resources
Official technical specs · Pinout reference · Schematic reference · Teensyduino setup
What’s in the box
1 × Teensy 4.0 board
Frequently Asked Questions
Is Teensy 4.0 better than Teensy 3.2 for heavy projects? Yes. It is much faster and has far more processing headroom.
Can I feed 5V signals into it? No. Teensy 4.0 digital pins are not 5V tolerant.
What is the main reason to choose 4.1 instead? Teensy 4.1 adds more I/O, Ethernet support, SD socket, and memory expansion options.
Is it good for audio? Yes. It is one of the best Teensy boards for real-time audio and DSP work.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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